Application details
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iTunes for Windows

http://www.apple.com/itunes/

iTunes is a media player, media library, online radio broadcaster, and mobile device management application developed by Apple Inc. It is used to play, download, and organize digital audio and video (as well as other types of media available on the iTunes Store) on personal computers running the OS X and Microsoft Windows operating systems. The iTunes Store is also available on the iPhone, iPad, and iPod Touch.